The heads of two giant mythological water horses honor Scotland's horselord past.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The castle that provided the setting for much of 'Monty Python and the Holy Grail' is now a pilgrimage site for fans.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This single-track road rewards brave drivers with stunning Scottish scenery.

A double cantilever system bridge that was designed to prevent flood damage.

Designed to allow funerals to proceed over the River Dulnain.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A six-ton wedding present for the King of the Scots.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The final resting place of soldiers' loyal canine companions.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

World's largest working waterwheel has been around for over 150 years.

In memory of the assassinated, now-canonized Salvadoran archbishop who is the namesake of nearby Romero Place.

A multi-storied painting that depicts the area's rich and diverse maritime history.

The last remaining bottle-shaped kilns in Scotland stand alone in an Edinburgh suburb.

The beloved bard's garb is proudly displayed within a Freemason's hall.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

One of Edinburgh's most popular works of street art is located well off the beaten path.